The RightStart Mathematics Level E Worksheets 1st Edition by Joan A. Cotter is a textbook designed for elementary school students in the United States. Focusing on the subject of mathematics, this spiral-bound book presents beginner-level content in English language. Authored by Cotter, it offers comprehensive educational material tailored towards young learners. With the feature of being a 1st edition, this textbook provides a solid foundation for students to build their mathematical skills and understanding.